Plate-glass and marble, smoother, rounder, and beveler.



G. R. TESCHEL.

PLATE GLASS AND MARBLE SMOOTHER, ROUNDER, AND BEVELER.

APPLICATION FILED NOV- 24, 1914.

sum/mm Witnesses Attorneys I THE NORRIS PETERS 60.. FHomLITHa. WASHINGTON G. R. TESCHEL.

PLATE GLASS AND MARBLE SMOOTHER, ROUNDER, AND BEVELER.

APPLICATION FILED NOV. 24, 1914.

v Patented Apr. 20, 1915.

2 SHEETS-SHEET 2.

THE NORRIS PETERS ($0., PHOTO-LITHO. WASHINGTON, D. c.

im r are e:

PLATE-GLASS AND MARBLE SMOOTI-IER, ROUNDER, AND BEVELER,

Specification of Letters Patent.

Patented Apr.- 26, 1915.;

Application filed November 24, 1914 Serial No. 873,774.

To all whom it may concern:

Be it known that I, Gnone RUDOLPH Tnsor-rnn, a subject of Germany, residing at Parkersburg, in the county of Wood and State of West Virginia, have invented a new and useful Plate- Glass and Marble Smoother, Rounder, and Beveler, of which the following is a specification.

The device forming the subject matter of this application is adapted for polishing, smoothing, rounding and beveling glass, marble or like substances.

One object of the present invention is to provide a device of the type above described embodying a frame adapted to tilt transversely of a drive shaft and to move longitudinally thereof, novel means being provided for operatively connecting an abrasive element carried by the frame with the drive shaft.

Another object of the invention is to provide novel means whereby the abrasive belt may be tightened and be held in proper operative condition to engage the work.

It is within the scope of the invention to improve generally and to enhance the util ity of devices ofthat type to which thepresent invention appertains.

With the above and other objects in view which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed can be made within. the scope of what is claimed withoutdeparting from the spirit of the invention.

In the accompanying drawings: Figure 1 shows the invention in elevation; Fig. 2 is a side elevation. showing the frame and parts carried thereby; Fig. '3 is a top plan of the frame; Fig. f is a fragmental transverse section depicting one of the bearings; Fig. 5 is a fragmental elevation showing one of the links in the belt tightener and attendant parts; Fig. 6 is a fragmental horizontal section taken through the link shown in Fig. 5.

In carrying out the present invention there is provided a pair of supports denoted respectively by the numerals l and 2. These supports 1 and2 have been shown as pro jecting upwardly from a foundation or table of any desired sort, but, as will be appreciated readily by anyskilled mechanic, the

supports 1 and 2. may if desired be suspended from an overhead structure. The supports 1 and 2 carry, respectively, bearings 3 and 4 in which is j ournaled for rotation a drive shaft 5 equipped at one end with suitable driving means 6 of any desired sort. The shaft 5 is provided with a longitudinal keyway 7 or its mechanical equiva- 'lent. A supporting frame for the abrasive element is mounted on the shaft 5 and in order that this frame may be removed from the shaft, the support 2, as indicated at 2 may be held in place removably.

The frame above alluded to embodies a pair of side plates 8 connected intermediate their ends by cross bars 9. In their central portions, the side plates 8 are provided with transverse slots 10, as shown in Fig. 2. It is through these slots 10 that the drive shaft 5 passes. The drive shaft 5 is journaled in bearing plates 11, mounted to move beneath guides 12 attached to the sideplates 8. Owing to the construction last above described, it will be obvious that the frame embodying the plates 8 may not only tilt or rock upon the drive shaft 5, but, as well, may be moved bodily in a direction transverse to the aXis of the shaft 5. These movements in the frame permit the abrasive element, to be described hereinafter, to be positioned properly with respect to the work. a

As shown best in Fig. 4, the side plates 8 of the frame are provided near their ends with thrust bearings 14 controlled by set screws 15 held in place by lock nuts 16. The thrust bearings 14 support both ends of the shaft 17 and support both ends of a shaft 18. Mounted on the shafts l7 and 18 are drums or rollers 19 about which is trained an abrasive belt 20, faced with carborundum or other material of a like sort. A means is provided whereby the abrasive belt 20 may be tightened up. With this end in view, standards 21 project from the side plate 8. The standards21 are slotted longitudina-lly as shown at 24: to receive slidably, bearings 23, the bearings 23 being sustained by means of compression springs 25. In-the bearings 23 is journaled a roller 26 which engages the'upper runof the belt 20, the position of the roller 26 being adjusted by means of screws 27 threaded into the upper portions of the standards 21 and at their lower ends rotatab'ly engaged with the bearings 23. Obviously, by rotating the screws i rotated, the sprocket wheel will be rotated was c ns ricti n?T oma ase s that when the fram'e' 'embodymg thev plates 8 is slidlongitudinally of the"shaft 5, the

- sprocket wheel dwill be oarried'longitudi;

may of the shaft, along'w'ith the frame,

Li lkS 32 M6 Pi t m Zn to the side plates 8. The links 32 pass, as indicated in Fig; 6, throughopenings. 3f formed in heads 36 at ends of erossbars 85 extended'transvei'sely of the frame. Pivot elements 37 connect the links 32"with the means" pijovided for swinging the links" 32v on the'same side of the frame toward and away from "each other.

i To accomplish this result," adju s ting memp mi bers3 9" are threaded as shewnat 38i'nto the headste at the ends ofthe cross bars 35, the inner ends of the adjusting members 39 being pivotally connected with each other as shown'at 14:0 Extended betweenthe links 32 arenor e' de Q- 'th f r me are rollers 41 which bear on the. lower'runof the belt 20 and serve'to maintain a portion of the belt straight, between the rollers 41' in" order tha he war ma b nfl t HP P prlylbgv he be: 1 Atta' chedt'o the ends of the side plates 8 are handles 42. By means "of the handles 42, the frameembodying the side plates 8 may be tiltedon the shaft 5, or be'slid longitiidinally thereof. Further, when the function of'the slots 10 is recalled, it will be obviousthat the frame may 'bemoved'bodily, in a direction transverse to the aXisj-of the shaft 5 These various movements in the frame 8 i the same to be'positionedproperly with respectto the work.

The driving train einloodiesthe shaft 5,

I the'sprocket wheel 30, the sprocket'chain 29, V the sprocket wheel 28, the shaft 18, the

roller thereon and the belt QO; 'As hereinbefore set forth, the beltmay betightened up a by the position of the-bearings 23 the lowerrungfofthe "beltmay be stretehed fiat for the engagement with the work, by moving the links 32 toward and "away from each foth'er'tl' rough"the medium 7, of the adjiistingmembers39;

I Ili-vihg thusdescribed the invention, what is claimed is 1'. In a devlce ofthe class described, a

drive shaft; means for supporting the drive shaft for rotation; a frame mounted to swing on the drive shaft transversely of the drive shaft; rollers journaled in the frame; an abrasive belt trainedabout the rollers; and means for operatively connecting one roller with the shaft.

2. In a device of the class described, a drive shaft; means for supporting the drive shaft for rotation; a frame; means for mounting the frame to swing on the drive shaft and to move bodily on the drive shaft transversely of the drive shaft; rollers ournal'ed in the frame; an abrasive belt trained about the rollers; and means for operatively connecting one roller with the shaft.

3. In a device of the class described, a drive shaft; means for supporting the drive shaft for rotation; a frame; means for mounting the frame to swing on the drive shaft, 'to slide longitudinally of the drive shaft, and to move bodily on the drive shaft transversely thereof; rollers journaled in the frame; an abrasive belt trained about the rollers; and means for operatively connecting one rqller with the shaft.

l. In a device'of the class described, a

frame; bearing members mounted to slide on the frame, transversely of the frame; a shaft journaled for rotation in the bearing members; means for supporting the shaft for rotation; rollers journaled in the frame; an abrasive belt trained about the rollers; and means for connecting one roller operatively with the shaft. j 5. In a device of the class described, a drive shaft; means for supporting the drive shaft for rotation; a frame; means for mounting the frame to swing on thedrive shaft and to slide longitudinally of the drive shaft; abrading means carried by the frame; and means for operatively connecting the abrading means with the shaft.

6. In a device ofthe class described, a drive shaft; a frame mounted to tilt on the drive shaft and to slide longitudinally of ,the drive shaft; rollers journaled on the frame; an abrasive belt trained about the rollers; means for connecting one roller operatively with the drive shaft; and tighteners carried by'the frame, the tighteners engaging, respectively, the upper and lower runs of the abrasive belt.

7. In a device of the class described, a

drive shaft; means for supporting the drive 8. In a device of the class described, a drive shaft; means for supporting the drive shaft for rotation; a frame mounted to slide longitudinally of the drive shaft and to tilt upon the drive shaft transversely of the drive shaft; rollers journaled in the frame; an abrasive belt trained about the rollers; a belt Wheel operatively connected With one roller; a belt Wheel keyed to drive shaft to slide thereon along With the frame; and a belt trained around the belt Wheels.

9. In a device of the class described, a drive shaft, means for supporting the drive shaft for rotation; a frame mounted to swing on the drive shaft; rollers carried by the frame; an abrasive belt trained about the rollers; means for connecting one of the rollers With the drive shaft; a bearing mounted to slide in the frame; yieldable means for supporting the bearing; a roller on the bearing and engaging the abrasive belt; and means carried by the frame for adjusting the position of the bearing.

In testimony that I claim the foregoing as my own, I have hereto affixed my signature in the presence of Witnesses.

GEORG RUDOLPH TESCHEL.

Witnesses:

C. E. TRAOEWELL, DORR CAS'IO, J. R. GoorER.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. G. 

